Mammillaria Forum

Discussion Forum about Mammillaria, Coryphantha and Escobaria
 
HomeHome  GalleryGallery  FAQFAQ  SearchSearch  RegisterRegister  Log in  

Share | 
 

 Mammillaria magnimamma

View previous topic View next topic Go down 
AuthorMessage
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Mammillaria magnimamma   Mon Mar 30, 2015 9:58 am

I find it hard to correctly identify plants of this species, mostly because the series to which they belong is not one I am particularly fond of. That said, I regularly buy in flower shops and supermarkets the odd plant that impresses me because of its spines, and when they grow they conform to my general idea of that species. My question is: would you call the following plants M. magnimamma? If not, which one and why not (if it's not too much to ask for...)? Thank you. Smile

1


2


3


4 (from seeds sent by a friend)


5 (this came mixed in a seed pack to which it shouldn't belong...)
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
Thord Hakansson



Number of posts : 20
Registration date : 2012-10-07

PostSubject: Re: Mammillaria magnimamma   Mon Mar 30, 2015 7:53 pm

In my humble opinion they are all magnimamma, and really Beautiful plants to boot!
Back to top Go down
View user profile
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Re: Mammillaria magnimamma   Mon Mar 30, 2015 9:08 pm

Thank you, Thord. Smile
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
walter hellinx



Number of posts : 61
Age : 63
Location : Duffel, belgium
Registration date : 2008-07-22

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 11:05 am

The original description makes it clear.
3-7 spines bending towards the body, NO CENTRALS!
This rules out 2 to 5.
In my opinion, 2, 4 and 5 are Mam.centralifera, number 3, the one with offsets is somthing else?
The Reppenhagen books should be reprinted!, and everyone should have a copy.
Here is a picture of my Mam.magnimamma:

From left to right and top to bottom:
Rep1170,PN76,SB40,HO357,ML288,PN? Colon-Zamora,Hid.,PN151PN85 and PN178.
All without centrals!
Back to top Go down
View user profile http://www.mammillaria.123website.be
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 11:19 am

Thank you, Walter. That was the kind of answer I was looking for. Smile

And may I say, beautiful plants!
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
Chris43
Moderator
Moderator
avatar

Number of posts : 1620
Age : 74
Location : Chinnor, UK
Registration date : 2008-07-16

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 11:30 am

It can sometimes be difficult to be sure if what looks like a central spine is really a central, or just a stronger radial, pushed a little more towards the centre.
I believe that one of the distinguishing features, apart from the number of spines, between M. magnimamma and M. compressa, is the presence of bristles as well as wool in the axils of M. compressa. M. compressa ssp. centralifera (or M. centralifera if you like) is very recognisable because of the 1 or sometimes 2 central spines, which can curve downwards, which if only 1 then can be mistaken for M. magnimamma.
Walter shows very typical M. magnimamma, I think all the PN and SB ones are from Hidalgo. Elsewhere forms vary somewhat, and a number of older and not well described names have been revived. That isn't a problem, as taxonomists disagree on whether to use a species name for what others would call a species group - i.e. a group of species closely related.
This is why it is always best to know where the plant comes from, I believe.
However, to understand those plants which are closely related, the Reppenhagen books are very useful indeed. They are quite expensive, and relatively rare now, especially the second volume, but I almost always now check Pilbeam (rather than the NCL, which perhaps has gone a bit far for my taste), and then Reppenhagen. I get a better overall view of a plant, no matter if you call it M. magnimamma or M. seitziana, or M. rioverdense.....

_________________
Chris43, moderator
Back to top Go down
View user profile http://www.woodedge.me.uk/index.html
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 11:44 am

Thank you, Chris. You have to love all the wonderful knowledge hanging around this forum. Smile

All of these plants are of suspicious origin, so to speak, and can be hybridized making it impossible to put a proper name to. I had the impression that M. compressa tends to clump a lot easier than the others in the series, but that bristle tip will be invaluable.

I have John Pilbeam's book and find it very good; the Reppenhagen's books are unreachable these days. Perhaps you could convince the Mammillaria Society to issue a reprint...? Wink
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 11:46 am

(as a side note, my plants were photographed before the first proper watering. They're not usually that battered...)
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
walter hellinx



Number of posts : 61
Age : 63
Location : Duffel, belgium
Registration date : 2008-07-22

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 12:15 pm

Still for sale on the net, you can look on "cactus-books.nl".
250 for the 2 bands.
Back to top Go down
View user profile http://www.mammillaria.123website.be
jfabiao

avatar

Number of posts : 290
Age : 53
Location : Lisbon, Portugal
Registration date : 2010-05-25

PostSubject: Re: Mammillaria magnimamma   Tue Mar 31, 2015 12:56 pm

I'd love to, but 250 is too much for me. I'll wait for a reprint or a bargain. Sad
Back to top Go down
View user profile http://jardineiroazelha.blogspot.com/
woltertenhoeve



Number of posts : 226
Registration date : 2009-10-01

PostSubject: Re: Mammillaria magnimamma   Wed Apr 01, 2015 5:06 pm

I would call numbers 1, 2 and probably also 5 M. magnimamma, whereas 3 and 4 are more M. compressa/centralifera-like.
Interestingly, the plant which is depicted in the Pilbeam book on p. 176 as M. magnimamma looks more like M. centralifera to me, whereas the plants shown on the next two pages are indeed M. magnimamma.
Conclusion: Make your own choice from all the suggestions!

By the way, I saw the two volumes of the Reppenhagen books being offered for only 50 in the latest (April) issue of the German journal Kakteen und andere Sukkulenten.

Wolter ten Hoeve, The Netherlands.

Back to top Go down
View user profile
Sponsored content




PostSubject: Re: Mammillaria magnimamma   

Back to top Go down
 
Mammillaria magnimamma
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» mammillaria magnimamma family - post in progress
» Mammillaria magnimamma
» Mammillaria saxicola
» Mammillaria bucareliensis
» Identification help !

Permissions in this forum:You cannot reply to topics in this forum
Mammillaria Forum :: MAIN SECTION :: Identification-
Jump to: